Processor unit and method for protecting data by data block confounding processing

Abstract

It's a kind of processor apparatus and method that can protect material by material block confusion. Among which, there are a processor core, a rapid storage, a block confusion and anti-confusion apparatus. The processor core can be used for execution the processor's command and access to the material in storing apparatus. The rapid storage couples to the processor core, provides the storing space for processor core to access material rapidly. The block confusion and anti-confusion apparatus couples to the rapid storage and the storing apparatus. It does the material block confusion process to the export of the rapid storage by seed that created by a seed generating apparatus, and does the material block anti-confusion process to the import of the storing apparatus according to this seed.

Description

technical field [0001] The invention relates to data protection in a processor, in particular to a processor device and method for protecting data by obfuscating data blocks. Background technique [0002] Generally, in order to protect the data in the data storage device from being stolen by outsiders, obfuscation operations are often used to encode and encrypt the data. However, in conventional processor architectures, the conflict between the complexity of the coding circuit and the computing performance has been encountered when performing obfuscated operations on data. If it is a complex encoding and decoding method, it will take a lot of extra time, resulting in low access performance. [0003] However, if the access performance is improved and encoding and decoding is performed in a simple manner, the encrypted data will be easily cracked. [0004] The known obfuscation operation is performed on a single piece of data. If the time it takes to access a single piece of...

AI Technical Summary

Problems solved by technology

In order to improve data chaos and strengthen protection, complex obfuscation operations are required, which increases the time spent on obfuscation operations and de-obfuscation operations rapidly. In addition, the known obfuscation operations are performed on a single piece of data, which fails to take advantage of the characteristics of the processor structure. The time spent in obfuscation operation and anti-obfuscation operation cannot be effectively reduced. Therefore, the design of the obfuscation processing method of the known processor device still has many shortcomings and needs to be improved.

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